Finding the Fourth Proportional to 521,678.08, 782,517.12 and 147,704.32
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Solution
The fourth proportional to 521,678.08, 782,517.12 and 147,704.32 is: 221,556.48
Step by Step Solution
- Step 1: Write the proportion equation
521,678.08 : 782,517.12 = 147,704.32 : x - Step 2: Convert to fraction form
521,678.08/782,517.12 = 147,704.32/x - Step 3: Cross multiply
521,678.08x = 782,517.12 × 147,704.32 - Step 4: Simplify right side
521,678.08x = 115,581,159,097.96 - Step 5: Solve for x
x = 115,581,159,097.96/521,678.08 - Step 6: Final answer
x = 221,556.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.